Device for introducing desired quantities of liquid into a container, usable in particular for quantitative analysis of samples

This device comprises a plurality of flasks filled with liquids 21, 23, 25 and 33 connected to the container 1 by pipes 13, 15, 17, 19 fitted with solenoid valves 27, 29, 31, 41, means 37 for continuously measuring the weight of the liquid introduced into the container at the time of opening of the solenoid valve 41, 43 associated with at least one of the said flasks 33, means 7, 9 for continuously measuring at least one property of the mixture present in the container and means for control 45 of the opening and of the closing of the solenoid valves. CE DISPOSITIF COMPREND UNE PLURALITE DE FLACONS REMPLIS DE LIQUIDES 21, 23, 25 ET 33 RELIES A L'ENCEINTE 1 PAR LES CONDUITES 13, 15, 17, 19 MUNIES D'ELECTROVANNES 27, 29, 31, 41, DES MOYENS 37 POUR MESURER EN CONTINU LE POIDS DU LIQUIDE INTRODUIT DANS L'ENCEINTE LORS DE L'OUVERTURE DE L'ELECTROVANNE 41, 43 ASSOCIEE A AU MOINS L'UN DESDITS FLACONS 33, DES MOYENS 7, 9 POUR MESURER EN CONTINU AU MOINS UNE PROPRIETE DU MELANGE PRESENT DANS L'ENCEINTE ET DES MOYENS DE COMMANDE 45 DE L'OUVERTURE ET DE LA FERMETURE DES ELECTROVANNES.